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WoS SCOPUS Document Type Document Title Abstract Authors Affiliation ResearcherID (WoS) AuthorsID (SCOPUS) Author Email(s) Journal Name JCR Abbreviation ISSN eISSN Volume Issue WoS Edition WoS Category JCR Year IF JCR (%) FWCI FWCI Update Date WoS Citation SCOPUS Citation Keywords (WoS) KeywordsPlus (WoS) Keywords (SCOPUS) KeywordsPlus (SCOPUS) Language Publication Stage Publication Year Publication Date DOI JCR Link DOI Link WOS Link SCOPUS Link
Article In-situ synthesis of bifunctional N-doped CoFe2O4/rGO composites for enhanced electrocatalysis in hydrogen and oxygen evolution reactions The development of cost-effective and efficient materials for electrochemical water splitting using non-noble metal oxide is a promising strategy to promote clean energy and mitigate environmental issues. In this study, we synthesized N-doped CoFe2O4 (NCF) and various wt% rGO-loaded N-doped CoFe2O4 (x = 1 %, 3 %, and 5 %; denoted as NCFRx) using a hydrothermal method. Subsequently, the NCF and NCFR3 samples were annealed at four different temperatures (y = 550, 600, 650, and 700 degrees C; denoted as NCFR3-y). FE-SEM, TEM, and XPS studies revealed a strong interface between rGO nanosheets and N-doped CF, acting as electron transport carriers that enhance performance in hydrogen and oxygen evolution reactions (HER and OER). The electrochemical evaluation of the prepared materials was carried out in a 1.0 M KOH electrolyte. The nickel foam (NF) electrode supported by the NCFR3-650 composite demonstrated excellent and stable electrocatalytic performance with a minimum overpotential of 73 mV and 170 mV at a current density of 10 mA/cm2 for HER and OER, respectively, and achieved excellent faradaic efficiencies of 91.01 % for OER and 90.48 % for HER. These results confirmed that the NCFR3-650@NF composite catalyst was comparable to standard Pt/C and IrO2, exhibiting lower overpotential and Tafel slope at a current density of 10 mA/cm2. The double layer capacitance (Cdl) of NCFR3-650@NF (7.70 mF/cm2) was higher than that of other electrocatalysts, indicating a large electrochemically active surface area. The structural properties of NCFR3-650@NF contributed to improved stability during long-term HER and OER analysis. Therefore, the developed NCFR3-650@NF electrocatalyst is a promising alternative to noble metal-centered systems for water splitting, offering overall high efficiency. Kumaravel, Sakthivel; Vignesh, Shanmugam; Balu, Krishnakumar; Madhu, Rajesh; Kusmartsev, Fedor, V; Alkallas, Fatemah H.; Trabelsi, Amira Ben Gouider; Oh, Tae Hwan; Lee, Dae Sung Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, South Korea; Saveetha Inst Med & Tech Sci SIMATS, Saveetha Sch Engn, Chennai 602105, Tamil Nadu, India; Univ Seville, Dept Ingn & Ciencia Mat & Transporte, ETS Ingn, Avda Camino Descubrimientos S-N, Seville 41092, Spain; Khalifa Univ, Coll Engn & Phys Sci, Abu Dhabi, U Arab Emirates; Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia Balu, Krishnakumar/H-9038-2019; Ben Gouider Trabelsi, Amira/CAG-7979-2022; Madhu, Rajesh/I-3297-2016; Alkallas, Fatemah/CAG-4943-2022; KUMARAVEL, SAKTHIVEL/KBC-0974-2024 57212580936; 59315621100; 22235198500; 55953847800; 7006372417; 57208282292; 55755265300; 57213539906; 55568524907 kbalu@us.es;taehwanoh@ynu.ac.kr;daesung@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1009 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 1.04 2025-05-07 3 3 Electrocatalyst; Hydrogen and oxygen evolution reaction; Melamine; RGO SUSTAINABLE DEVELOPMENT; GRAPHITIC CARBON; FACILE SYNTHESIS; GRAPHENE; REDUCTION; ENERGY; NANOCOMPOSITES; NANOPARTICLES; FERRITE Electrocatalyst; Hydrogen and oxygen evolution reaction; Melamine; N-doped CoFe<sub>2</sub>O<sub>4</sub>; RGO Alkanolamines; Aspect ratio; Biosynthesis; Chlorination; Crystallites; Doping (additives); Electrolysis; Electrolytes; Hydrogen evolution reaction; Hydrothermal synthesis; Industrial wastes; Iridium compounds; Ligands; Nanosheets; Negative temperature coefficient; Oxygen evolution reaction; Photodegradation; Photodissociation; Positive temperature coefficient; Rate constants; Thermal conductivity of gases; 'current; Evolution reactions; Hydrogen-evolution; N-doped; N-doped cofe2O4; Nickel foam; Overpotential; Oxygen evolution; RGO; Water splitting; Potassium hydroxide English 2024 2024-12-25 10.1016/j.jallcom.2024.176978 바로가기 바로가기 바로가기 바로가기
Article Inorganic salt-infused transparent nanofiber filters: A new approach to high-efficiency particulate matter removal via electrospinning Although electrospun filters show promise for capturing particulate matter (PM), their application in windows, which rely on pressure differentials between indoor and outdoor environments, is hindered by low efficiency for PM <2.5 μm and resulting pressure drops. Enhancing the attractive forces on electrospun fibers through material engineering is often complex and expensive, and transparency is crucial for window filters. This study aimed to develop a straightforward method by blending polyacrylonitrile (PAN) with potassium iodide (KI) salts that dissolve easily and possess a high dipole moment (10.2D). Distinctive characteristics of KI facilitate the production of high-performance PM filters with exceptional transparency. Increasing KI loading during electrospinning resulted in a filter with 0.5 M KI, demonstrating a PM removal efficiency of 88.20 % and 90 % transmittance, surpassing the efficiency of pure PAN filters (72.81 %) by 16 %. The pressure drop was low (2.8 Pa), within the typical range of indoor-outdoor differentials, and the quality factor was notably higher at 0.76 Pa−1. KI also served as a plasticizer, enhancing fiber connectivity and preserving nanostructures under weathering stress. After a 100-hour test, the filter retained its high efficiency and transparency. Therefore, PAN/KI electrospun filters are excellent for window applications and easy to produce commercially. © 2024 Elsevier B.V. Ryu, Dohyeok; Han, Dong-yun; Lee, Jaewon; Yang, Seunghwa; Song, Jungeun; Kim, Dong-Wook; Lee, Pyung-Soo; Jeong, Soo-Hwan Department of Chemical Engineering, Kyungpook National University (KNU), 80, Daehak-Ro, Buk-Gu, Daegu, 702-701, South Korea; Department of Chemical Engineering and Material Science, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974, South Korea; Mechanical Engineering Division, School of Energy Systems Engineering, Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul, 06974, South Korea; Mechanical Engineering Division, School of Energy Systems Engineering, Chung-Ang University, 84 Heukseok-Ro, Dongjak-Gu, Seoul, 06974, South Korea; Department of Physics, Ewha Womans University, Seoul, 03760, South Korea; Department of Physics, Ewha Womans University, Seoul, 03760, South Korea; Department of Chemical Engineering and Material Science, Chung-Ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974, South Korea; Department of Chemical Engineering, Kyungpook National University (KNU), 80, Daehak-Ro, Buk-Gu, Daegu, 702-701, South Korea 59224933500; 58737186400; 58881208800; 16647551800; 57211232515; 57203350633; 55474663100; 7402425359 pslee@cau.ac.kr; Applied Surface Science APPL SURF SCI 0169-4332 1873-5584 671 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0 2025-05-07 0 Dipole moment; Electrospinning; Particle matter; Potassium iodide; Window filter Blending; Efficiency; Electrospinning; Particles (particulate matter); Potassium iodide; Pressure drop; Transparency; Electrospuns; Higher efficiency; Indoor environment; Inorganic salts; New approaches; Outdoor environment; Particle matter; Particulate Matter; Pressure differential; Window filters; Drops English Final 2024 10.1016/j.apsusc.2024.160751 바로가기 바로가기 바로가기
Article Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models BackgroundDiabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.ResultsProtein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.ConclusionsNET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation. Jeon, You Hyun; Oh, Se-Hyun; Jung, Soo-Jung; Oh, Eun-Joo; Lim, Jeong-Hoon; Jung, Hee-Yeon; Choi, Ji-Young; Park, Sun-Hee; Kim, Chan-Duck; Kim, Yong-Lim; Hong, Chang-Won; Cho, Jang-Hee Kyungpook Natl Univ Hosp, Dept Internal Med, Div Nephrol, 130 Dongdeok Ro, Daegu 41944, South Korea; Kyungpook Natl Univ, Biomed Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Cell & Matrix Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Physiol, 680 Gukchaebosang Ro, Daegu 41944, South Korea Cho, Jang-hee/ABD-3534-2020; Lim, Jeong-Hoon/ABE-6003-2020; Jung, Hee-Yeon/AFB-8578-2022; Kim, Yong-Lim/AGK-3172-2022 57820096000; 56053033900; 57193347340; 35783223700; 55360244300; 57196396467; 7501393222; 7501831741; 8558530700; 55633533600; 55567018400; 7403536291 cwhong@knu.ac.kr;jh-cho@knu.ac.kr; LABORATORY ANIMAL RESEARCH LAB ANIM RES 1738-6055 2233-7660 40 1 ESCI MEDICINE, RESEARCH & EXPERIMENTAL;VETERINARY SCIENCES 2024 2.9 10.9 0 2025-05-07 1 0 Chronic kidney disease; Diabetic nephropathy; Hyperglycemia; Neutrophil; Neutrophil extracellular traps PRIMARY GRANULE EXOCYTOSIS; POLYMORPHONUCLEAR LEUKOCYTES; HIGH GLUCOSE; NETOSIS; PATHOGENESIS; INFLAMMATION; MECHANISMS; HISTONES; NECROSIS; IMMUNITY Chronic kidney disease; Diabetic nephropathy; Hyperglycemia; Neutrophil; Neutrophil extracellular traps English 2024 2024-11-07 10.1186/s42826-024-00226-2 바로가기 바로가기 바로가기 바로가기
Article Simplifying the Animal Welfare Assessment Grid for enhanced accessibility Ensuring animal welfare is essential for both the well-being of zoo animals and the effective management of zoological facilities. This study introduces the Simplified Animal Welfare Assessment Grid (S-AWAG), a streamlined adaptation of the original AWAG framework that integrates the Five Domains Model with an observation-based approach. Designed for non-expert users, S-AWAG focuses on easily observable welfare indicators-such as health and environmental conditions-making it particularly suitable for small, private zoos, including petting zoos, roadside zoos, indoor zoos, and animal caf & eacute;s. We conducted welfare assessments on 304 animals from 11 species across nine zoos in South Korea. The results revealed significant differences in welfare standards between accredited and non-accredited zoos, with accredited facilities consistently demonstrating better welfare conditions (p < 0.05). The tool exhibited high inter-rater reliability (IRR = 0.839), confirming its consistency across assessors with varying levels of expertise and ensuring reliable and accurate results. Pearson correlation analysis identified strong positive associations between health and environmental factors, reinforcing the comprehensive nature of the tool's evaluation approach. With its user-friendly, efficient, and adaptable design, S-AWAG has the potential to improve animal welfare standards not only in South Korea but also globally, particularly in smaller, resource-constrained facilities. Kim, Ji-yoon; Choi, Jae-Hyeon; Ryu, Hyunyoung; Kang, Hye-Jin Kyungpook Natl Univ, Coll Ecol & Environm Sci, Dept Horse Compan & Wild Anim, Sangju, South Korea Kang, Hye Jin/HKV-9155-2023 57208110209; 58954517400; 59460672700; 57706440100 animalwelfare@snu.ac.kr; FRONTIERS IN VETERINARY SCIENCE FRONT VET SCI 2297-1769 11 SCIE VETERINARY SCIENCES 2024 2.9 10.9 1.24 2025-05-07 1 1 animal welfare; animal welfare assessment; Animal Welfare Assessment Grid; Five Domains Model; zoo animal welfare; observation-based welfare assessment; simplified welfare assessment; non-expert welfare evaluation VALIDITY; RATINGS; ZOOS animal welfare; animal welfare assessment; Animal Welfare Assessment Grid; Five Domains Model; non-expert welfare evaluation; observation-based welfare assessment; simplified welfare assessment; zoo animal welfare analytic method; animal welfare; Article; correlation analysis; environmental factor; interrater reliability; nonhuman; South Korea; zoo animal English 2024 2024-11-19 10.3389/fvets.2024.1459560 바로가기 바로가기 바로가기 바로가기
Article Surface charge engineering for structural control of colloidal silica rod-decorated silica particles and their flexible integration into magnetic core-multishell structures In this study, the effect of surface modification and the resulting surface charge of colloidal silica seeds on the growth of silica rods during an emulsion droplet-based process is investigated. Through electrostatic interactions between negatively charged poly(vinylpyrrolidone) (PVP) and seed surfaces, significant PVP adsorption occurs as the seed surfaces are modified with positively charged cationic substances and then aged with PVP. This surface charge-enhanced PVP adsorption promotes the anchoring of water emulsion droplets, serving as the starting point for the growth of silica rods on the seed surfaces and leading to a high yield of silica rod-decorated particles during emulsion droplet-based growth. The surface properties, including surface charge and hydrophobicity, can be further modified by applying different cationic modifiers, which influence the morphology, structural architecture, and yield of the final product. We further demonstrated the versatility of this approach by successfully generating silica rod-decorated magnetic core (Fe3O4)-multishell (silica/polystyrene/titania) particles. The findings of this study highlight the critical role of surface charge engineering in controlling the structure and morphology of silica rod-decorated silica particles as well as their integration into complex multicomponent systems. Kang, Hosu; Kim, Da In; Kim, Yeon Chae; Yoo, Hye Jin; Kim, So Young; Lu, Ping; Moon, Geon Dae; Kim, Jongbok; Park, Seonhwa; Min, Yuho; Hyun, Dong Choon Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea; Rowan Univ, Dept Chem & Biochem, 201 Mullica Hill Rd, Glassboro, NJ 08028 USA; Korea Inst Ind Technol, Dongnam Reg Div, Busan 46938, South Korea; Kumoh Natl Inst Technol, Dept Mat Sci & Engn, Gumi 39177, Gyeongbuk, South Korea; Kyungpook Natl Univ, Reg Leading Res Ctr Smart Energy Syst, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Innovat Semicond Educ & Res Ctr Future Mobil, Daegu 41566, South Korea Kim, So-Young/JFS-7698-2023 57301403500; 57204061726; 59150618900; 58754573200; 55220709200; 57195511292; 23489708500; 15762365000; 58437403700; 36782804100; 15834575400 yuhomin@knu.ac.kr;dong.hyun@knu.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 667 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0.32 2025-05-07 1 1 Surface charge engineering; Emulsion droplet -based growth; Silica rod; Seed particle; Magnetic core -multishell structure GROWTH; NANOPARTICLES; SIZE; POLY(N-VINYL-2-PYRROLIDONE); MONODISPERSE; ADSORPTION; SHAPE Emulsion droplet-based growth; Magnetic core–multishell structure; Seed particle; Silica rod; Surface charge engineering Drops; Emulsions; Magnetic bubbles; Magnetite; Morphology; Silica; Colloidal silica; Emulsion droplet-based growth; Emulsion droplets; Magnetic core–multishell structure; Multishell structures; Seed particle; Seed surfaces; Silica particles; Silica rod; Surface charge engineering; Emulsification English 2024 2024-09-15 10.1016/j.apsusc.2024.160431 바로가기 바로가기 바로가기 바로가기
Article Synergetic effect of Bi and Al co-doping in GeTe-based thermoelectric materials leading to optimized carrier concentration tuning and high ZT Improving the performance of thermoelectric (TE) materials that can convert waste heat into electricity is becoming increasingly important. Accordingly, the dimensionless figure of merit, ZT needs to be increased. Al, a group-III element, has not been widely used as a dopant in GeTe-based thermoelectric materials because it acts as a p-type dopant and thus further increases the hole carrier concentration of GeTe, which has already a high intrinsic hole concentration due to inherent Ge vacancies. Therefore, Al as a dopant in GeTe has been considered to have detrimental effects on the resulting thermoelectric performance. In this study, we aim to enhance the suitability of Al doping in GeTe-based materials through synergistically co-doping it with Bi. In this case, codoping Al and Bi optimizes the carrier concentration and induces a high Seebeck coefficient from an additional increased effective mass and low total thermal conductivity arising from the numerous phonons scattering centers and decreased electronic contribution to heat transport. Consequently, a maximum ZT of similar to 1.95 at 673 K with an increased average ZT is achieved. These results indicate that the p-type dopant Al, co-doped with Bi in GeTe-based thermoelectric materials is one of the very effective dopants which can eventually improve the overall TE performance of these materials for useful waste heat recovery application and cooling. Kim, Seyeong; Kihoi, Samuel Kimani; Kim, Hyunji; Kahiu, Joseph Ngugi; Lee, Ho Seong Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak ro, Daegu 41566, South Korea Kihoi, Samuel Kimani/IUM-8515-2023 58520601000; 57208396874; 57208408040; 57222096169; 55706810400 hs.lee@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 970 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 5.2 2025-05-07 15 16 Thermoelectrics; GeTe; p-type dopant; Herringbone structure; Pseudo-cubic; Thermal conductivity BAND CONVERGENCE; THERMAL-CONDUCTIVITY; PHONON-SCATTERING; PERFORMANCE; FIGURE; MERIT; SB; REALIZATION GeTe; Herringbone structure; p-type dopant; Pseudo-cubic; Thermal conductivity; Thermoelectrics Aluminum; Germanium compounds; Hole concentration; Tellurium compounds; Thermal conductivity; Thermoelectric equipment; Thermoelectricity; Waste heat; Waste heat utilization; Co-doping; Herringbone structure; P-type dopant; Performance; Pseudo-cubic; Synergetic effect; Thermo-Electric materials; Thermoelectric; Thermoelectric material; Thermoelectric performance; Germanium alloys English 2024 2024-01-05 10.1016/j.jallcom.2023.172574 바로가기 바로가기 바로가기 바로가기
Article Synergistically enhanced LiF-rich protective layer for highly stable silicon anodes Silicon (Si) is considered as one of the most promising anode materials with an extremely high specific capacity (3579 mAh/g), which is beyond the limit of conventional graphite anodes in lithium (Li) ion batteries (LIBs). However, large volume changes during the lithiation/delithiation process and formation of an unstable solid electrolyte interface (SEI) layer hinder the practical application of Si anodes. To address these issues, constructing a stable protective layer at the interface between anode and electrolyte is a desirable strategy. In this study, a LiF-rich SEI inducing protective layer (LPL) comprising aluminum fluoride (AlF 3 ) and poly(acrylic acid) (PAA) is introduced onto Si anode to construct a stable LiF-rich SEI layer and mitigate the volume changes of the Si anodes during cycling. Owing to the synergetic effects of AlF 3 and PAA, a LiF-rich SEI layer with robust physicochemical properties is uniformly formed on the Si anode. As a result, the LPL coated Si (LPL@Si) anodes exhibit outstanding electrochemical properties in Li metal cell tests. In addition, a full-cell prepared with the LPL@Si anode and LiNi 0.8 Co 0.1 Mn 0.1 O 2 as a cathode exhibits an excellent cycling performance and mitigated volume changes, demonstrating the potential of this strategy to protect the Si anodes for the development of high-energy-density LIBs. Lee, Dongsoo; Lee, Seungho; Jung, Dae Soo; Roh, Kwang Chul; Seo, Jihoon; Kim, Junghwan; Kim, Kwanghyun; Kim, Patrick Joohyun; Choi, Junghyun Gachon Univ, Sch Chem Biol & Battery Engn, Seongnam Si 13120, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Dept Appl Chem, Daegu 41566, South Korea; Korea Inst Ceram Engn & Technol, Energy Storage Mat Ctr, Jinju 52851, South Korea; Clarkson Univ, Dept Chem & Biomol Engn, Potsdam, NY 13699 USA Seo, Jihoon/ABI-6972-2020; Lee, Dongsoo/AAY-4231-2021 57201799820; 59627599900; 16233760500; 35175060800; 55821491100; 55966669500; 55261223600; 57195611779; 59883103900 pjkim@knu.ac.kr;junghchoi@gachon.ac.kr; APPLIED SURFACE SCIENCE APPL SURF SCI 0169-4332 1873-5584 661 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER 2024 6.9 10.9 0.97 2025-05-07 6 6 Lithium fluoride; Solid electrolyte interphase; Silicon anode; Lithium ion battery; Protective layer SOLID-ELECTROLYTE INTERPHASE; FLUOROETHYLENE CARBONATE FEC; ION; PERFORMANCE; BATTERIES; BINDERS Lithium fluoride; Lithium ion battery; Protective layer; Silicon anode; Solid electrolyte interphase English 2024 2024-07-15 10.1016/j.apsusc.2024.160023 바로가기 바로가기 바로가기 바로가기
Article The impact of quality of life on the survival of elderly patients with end-stage renal disease: a prospective multicenter cohort study in Korea Background Quality of life (QOL) is associated with mortality in dialysis patients. However, the impact of QOL index or score on elderly patients undergoing maintenance dialysis is unclear. We analyzed the relationship between QOL domains and survival in elderly end-stage renal disease (ESRD) patients on dialysis. Methods We included 492 incident ESRD patients aged >= 65 years from a Korean nationwide prospective cohort study who were assessed for QOL with a follow-up duration of 67.3 +/- 34.6 months after dialysis initiation. Their QOL was evaluated using the Kidney Disease Quality of Life (KDQOL) instrument, and the effect of each QOL domain on mortality was analyzed. Multivariable Cox regression analysis was performed to identify independent risk factors for death after adjusting for confounding factors. Results Low physical component summary (PCS) and Short Form-36 score were significantly associated with low survival rate (P < .001 and P = .017, respectively), whereas the mental component summary and ESRD-targeted item scores were not correlated with survival rate. Multivariable Cox regression analysis confirmed that only a high PCS score was associated with better survival (hazard ratio 0.71; 95% confidence interval 0.52-0.97; P = .031). Linear regression analysis revealed that age, sex, modified Charlson comorbidity index, albumin and intact parathyroid hormone were associated with PCS. Among the PCS items, only the physical functioning score was significantly associated with mortality (P = .017). Conclusion PCS was an independent risk factor for death in elderly ESRD patients. A higher physical functioning score was associated with a better outcome, suggesting the importance of physical condition in elderly dialysis patients. {Graphical Abstract} Chung, Yu-Kyung; Lim, Jeong-Hoon; Jeon, Ye-na; Jeon, You Hyun; Jung, Hee-Yeon; Choi, Ji-Young; Park, Sun-Hee; Kim, Chan-Duck; Kim, Yong-Lim; Cho, Jang-Hee Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Div Nephrol,Dept Internal Med, Daegu, South Korea; Clin Res Ctr End Stage Renal Dis, Daegu, South Korea; Univ Calif San Francisco, Dept Epidemiol & Biostat, San Francisco, CA USA Park, Sun-Hee/LMN-0033-2024; Cho, Jang-hee/ABD-3534-2020; Kim, Yong-Lim/AGK-3172-2022; Lim, Jeong-Hoon/ABE-6003-2020 57289628500; 55360244300; 57209909350; 57820096000; 57196396467; 7501393222; 7501831741; 8558530700; 55633533600; 7403536291 ylkim@knu.ac.kr;jh-cho@knu.ac.kr; CLINICAL KIDNEY JOURNAL CLIN KIDNEY J 2048-8505 2048-8513 17 9 SCIE UROLOGY & NEPHROLOGY 2024 4.6 10.9 0 2025-05-07 1 1 dialysis; elderly patient; end-stage renal disease; quality of life; survival CHRONIC KIDNEY-DISEASE; PERITONEAL-DIALYSIS; HEMODIALYSIS-PATIENTS; PHYSICAL-ACTIVITY; PRACTICE PATTERNS; OLDER-ADULTS; HEALTH; MORTALITY; OUTCOMES; DEPRESSION dialysis; elderly patient; end-stage renal disease; quality of life; survival albumin; parathyroid hormone; aged; Article; Charlson Comorbidity Index; cohort analysis; confounding variable; controlled study; end stage renal disease; female; follow up; geriatric patient; hemodialysis patient; human; Kidney Disease Quality of Life; major clinical study; male; mortality risk; physical performance; prospective study; quality of life; Short Form 36; South Korea; survival rate English 2024 2024-09-02 10.1093/ckj/sfae241 바로가기 바로가기 바로가기 바로가기
Article The rational design of bifunctional MOF-ZnFe2O4 hollow sphere-based nanocomposites for ultra-efficient electrochemical oxygen evolution reaction and high-performance symmetric supercapacitor electrodes Supercapacitors have emerged as versatile energy storage devices, valued for their rapid charge-discharge capabilities and long cycle life. Concurrently, efficient electrocatalysts are essential for promoting the oxygen evolution reaction (OER) in sustainable energy applications. Inevitably, this study explores the integration of a Cobalt-Nickel (Co/Ni) based metal-organic framework [CoNi((mu 3-tp)2(mu 2-py)2 or CNTP] with ZnFe2O4 hollow spheres (ZHS) to create innovative CNTP/ZHS nanocomposites tailored for supercapacitor and electrocatalytic OER applications. Different weight percentages of CNTP/ZHS nanocomposites were synthesized through a facile and scalable method, and their electrochemical performance was rigorously assessed. Electrochemical characterization revealed that a 40 wt percentage CNTP/ZHS (40-CNTP/ZHS) electrode demonstrated a very high specific capacitance of 1519.2 Fg- 1 at 1 Ag- 1 and retained 92.6 % of its specific capacitance after 10000 cycles. Moreover, it delivered remarkably high specific capacitance (447.2 Fg-1) and energy density (62.1 WhKg-1) along with outstanding cyclic stability (97.5 % after 5000 galvanostatic charge-discharge cycles). It also exhibited excellent OER activity, with a very low overpotential (207 mV to attain a current density of 10 mAcm-2), a small Tafel slope (66.5 mVdec-1), and high stability over 2000 cyclic voltammetry cycles. These characteristics underscore the significant potential of renewable energy technologies, particularly for water electrolysis and sustainable energy conversion. Lee, Dong-Eun; Danish, Mohtaram; Husain, Ahmad; Jo, Wan-Kuen Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Univ Tenaga Nas, Inst Power Engn, Kajang 43000, Selangor, Malaysia Husain, Ahmad/ACG-5055-2022; Jo, Wan/AAO-5329-2020 56605563300; 57216220743; 57215031715; 7103322277 mdanish2@myamu.ac.in;ahmadhusain2065@gmail.com;wkjo@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1000 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 4.16 2025-05-07 15 16 Energy storage; Energy conversion; Water electrolysis; Thermal impregnation; Hollow sphere; Binary nanocomposite METAL-ORGANIC-FRAMEWORK; REDUCED GRAPHENE OXIDE; WATER-OXIDATION; DOPED GRAPHENE; HIGH-CAPACITY; ELECTROCATALYST; ZNFE2O4; NANOPARTICLES; CATALYST; HETEROSTRUCTURE Binary nanocomposite; Energy conversion; Energy storage; Hollow sphere; Thermal impregnation; Water electrolysis Capacitance; Cyclic voltammetry; Electric discharges; Electrocatalysts; Electrochemical electrodes; Electrolysis; Electrolytic reduction; Energy efficiency; Nanocomposites; Organometallics; Oxygen; Renewable energy; Scalability; Spheres; Supercapacitor; Zinc compounds; Bi-functional; Binary nanocomposite; Electrochemical oxygen; High specific capacitances; Hollow sphere; Rational design; Sustainable energy; Thermal impregnations; Ultra-efficient; Water electrolysis; Energy storage English 2024 2024-09-25 10.1016/j.jallcom.2024.175048 바로가기 바로가기 바로가기 바로가기
Article Two birds with one stone: Facile fabrication of a ternary ZnIn2S4/BiVO4/ MWCNTs nanocomposite for photocatalytic detoxification of priority organic pollutants and hydrogen production with a proposed mechanism A series of ternary nanocomposites with different weight percentages of zinc indium sulfide, bismuth vanadate, and multiwalled carbon nanotubes (ZnIn2S4/BiVO4/MWCNTs) were synthesized using a simple thermal impregnation method to obtain high charge separation and transfer efficiency, thus improving their photocatalytic performance. The 20 wt% ZnIn2S4/BiVO4/MWCNTs (20 wt% ZBM) nanocomposite exhibited enhanced photocatalytic activity compared to pure BiVO4 and ZnIn2S4 for the degradation of methylene blue, acetaminophen, and allopurinol in an aqueous solution when exposed to a visible light source and atmospheric oxygen. This nanocomposite demonstrated a particularly high degradation rate constant (k = 6.39 x 10-2 min -1) for the photocatalytic degradation of methylene blue. The introduction of MWCNTs boosted the photocatalytic performance of the 20 wt% ZBM nanocomposite, attaining a maximum H2 production of 1704 mu mol g-1. Repeated photocatalytic H2 generation reached 1621 mu mol g-1 after 5 h of irradiation with four consecutive cycles. Therefore, we propose a "two birds with one stone" strategy for greatly improved photocatalytic wastewater detoxification and H2 production by prolonging the lifetime of the photogenerated electron-hole pair separation. Lee, Dong-Eun; Danish, Mohtaram; Jo, Wan-Kuen Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea ; Jo, Wan/AAO-5329-2020 56605563300; 57216220743; 7103322277 dmohtaram@gmail.com;wkjo@knu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 980 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 5.89 2025-05-07 21 21 Ternary nanocomposite; Thermal impregnation; Photo -detoxification; Water splitting METHYLENE-BLUE; DEGRADATION; PERFORMANCE; HETEROJUNCTION; EFFICIENCY; PH; PHOTODEGRADATION; COMPOSITE; KINETICS; SILVER Photo-detoxification; Ternary nanocomposite; Thermal impregnation; Water splitting Aromatic compounds; Bismuth compounds; Degradation; Hydrogen production; Indium compounds; Multiwalled carbon nanotubes (MWCN); Nanocomposites; Organic pollutants; Photocatalytic activity; Rate constants; Zinc sulfide; Facile fabrication; H 2 production; Methylene Blue; MWCNT's; Photo-catalytic; Photo-detoxification; Photocatalytic performance; Ternary nanocomposites; Thermal impregnations; Water splitting; Detoxification English 2024 2024-04-15 10.1016/j.jallcom.2024.173615 바로가기 바로가기 바로가기 바로가기
Article Use of two-point and six-point Dixon MRI for fat fraction analysis in the lumbar vertebral bodies and paraspinal muscles in healthy dogs: comparison with magnetic resonance spectroscopy Introduction Fatty degeneration of the vertebral bodies and paravertebral muscles is associated with the presence, severity, and prognosis of spinal disease such as intervertebral disc degeneration. Therefore, the fat fraction (FF) of the vertebral bodies and paraspinal muscles has been considered a potential biomarker for assessing the pathophysiology, progression, and treatment response of spinal disease. Magnetic resonance spectroscopy (MRS) is considered the reference standard for fat quantification; however, it has limitations of a long acquisition time and is technically demanding. Chemical shift-encoding water-fat imaging, called the Dixon method, has recently been applied for rapid fat quantification with high spatial resolution. However, the Dixon method has not been validated in veterinary medicine, and we hypothesized that the Dixon method would provide a comparable assessment of the FF to MRS but would be faster and easier to implement in dogs.Methods In this prospective study, we assessed the FF of the lumbar vertebral bodies and paravertebral muscles from the first to sixth lumbar vertebrae using MRS, the two-point Dixon method (LAVA-FLEX), and the six-point Dixon method (IDEAL-IQ) and compared these techniques.Results and discussion The FFs of vertebral bodies and paravertebral muscles derived from LAVA-FLEX and IDEAL-IQ showed significant correlations and agreement with those obtained with MRS. In particular, the FFs obtained with IDEAL-IQ showed higher correlations and better agreement with those obtained with MRS than those derived by LAVA-FLEX. Both Dixon methods showed excellent intra- and interobserver reproducibility for FF analysis of the vertebral bodies and paraspinal muscles. However, the test-retest repeatability of vertebral body and paraspinal muscle FF analysis was low for all three sequences, especially for the paraspinal muscles. The results of this study showed that LAVA-FLEX and IDEAL-IQ have high reproducibility and that their findings were highly correlated with the FFs of the lumber vertebral bodies and paraspinal muscles determined by MRS in dogs. The FF analysis could be performed much more easily and quickly using LAVA-FLEX and IDEAL-IQ than using MRS. In conclusion, LAVA-FLEX and IDEAL-IQ can be used as routine procedures in spinal magnetic resonance imaging in dogs for FF analysis of the vertebral bodies and paraspinal muscles. Lee, Hye-Won; Lee, Ji-Yun; Lee, Joo-Young; Yu, Seung-Man; Lee, Kija; Lee, Sang-Kwon Kyungpook Natl Univ, Coll Vet Med, Dept Vet Med Imaging, Daegu, South Korea; Jeonju Univ, Coll Med Sci, Dept Radiol Sci, Jeonju, South Korea Yu, Sungman/AAH-6164-2020; Lee, Sang-Kwon/IYI-9991-2023 58171907000; 59231673900; 57212924799; 56171205800; 35311016000; 59510683500 sklee10@knu.ac.kr; FRONTIERS IN VETERINARY SCIENCE FRONT VET SCI 2297-1769 11 SCIE VETERINARY SCIENCES 2024 2.9 10.9 0 2025-05-07 0 0 canine; chemical shift; intervertebral disc disease; magnetic resonance imaging; myosteatosis BONE-MARROW; QUANTITATIVE MRI; QUANTIFICATION; AGE; INFILTRATION; DEGENERATION canine; chemical shift; intervertebral disc disease; magnetic resonance imaging; myosteatosis alfaxalone; alfaxan; anesthetic agent; ifran; isoflurane; medetin; medetomidine; Article; controlled study; dog; fat fraction; feasibility study; female; IDEAL IQ Dixon method; intermethod comparison; LAVA FLEX Dixon method; lumbar vertebra; male; nonhuman; nuclear magnetic resonance imaging; nuclear magnetic resonance spectroscopy; paraspinal muscle; prospective study; radiological parameters; reproducibility English 2024 2024-09-25 10.3389/fvets.2024.1412552 바로가기 바로가기 바로가기 바로가기
Article Yielding optimal dielectric energy storage and breakdown properties of lead-free pyrochlore ceramics by grain refinement strategies In the quest to develop high-performance dielectrics suitable for high-power applications, its microstructure engineering and understanding the effect on the property have become crucial. However, the trade-off relationship between saturated polarization and breakdown strength with respect to the average grain size complicates defining the ideal microstructure for high-performance energy storage dielectrics. In this study, we investigates the impact of the microstructure of (Bi1.5Zn0.5)(Zn0.5Nb1.5)O-7 (BZN) pyrochlore ceramics on their energy storage characteristics by adjusting sintering temperatures. Interestingly, dielectric properties, energy storage capabilities, and electrical fatigue characteristics exhibit minimal change, maintaining a high dielectric constant (similar to 160) and a low dielectric loss (<10(-4)) Moreover, BZN ceramics demonstrate quasi-linear dielectric properties up to 250 kV cm(-1), with slight fluctuation in energy density as the function of grain size (1.08-1.26 J cm(-3)). This weak dependence of energy storage on microstructure underscores that the enhancement of BZN ceramics for energy storage devices is more effectively achieved by improving breakdown strength through microstructural refinement rather than grain enlargement, which has limited impact on energy density in BZN systems. The findings from this study offer valuable insights into optimizing the microstructures of multilayer systems that are targeted at augmenting volumetric energy density, laying the groundwork for further advancements in dielectric materials. Lee, Seung Yong; Kim, Hyunseung; Baek, Changyeon; Parke, Kwi-Il; Lee, Gyoung-Ja; Kim, Seung-Hyun; Lee, Ju-Hyeon; Lee, Min-Ku; Kim, Do Kyung; Jeong, Chang Kyu Korea Adv Inst Sci & Technol KAIST, Dept Mat Sci & Engn, Daejeon 34141, South Korea; Jeonbuk Natl Univ, Div Adv Mat Engn, Jeonju 54896, Jeonbuk, South Korea; Jeonbuk Natl Univ, Grad Sch BK21 FOUR, Dept Energy Storage Convers Engn, Jeonju 54896, Jeonbuk, South Korea; Jeonbuk Natl Univ, Hydrogen & Fuel Cell Res Ctr, Jeonju 54896, Jeonbuk, South Korea; Korea Atom Energy Res Inst KAERI, Nucl Syst Integr Sensing & Diag Res Div, Daejeon 34057, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Brown Univ, Sch Engn, Providence, RI 02912 USA; Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA; Jeonbuk Natl Univ, Acad Convergence Res, Dept JBNU KIST Ind, Jeonju 54896, Jeonbuk, South Korea Kim, Do Kyung/C-2039-2011; Jeong, Chang Kyu/ADT-8127-2022; Kim, Seung/LWK-2647-2024 59056063400; 57216301848; 57095549400; 35280874200; 8588965200; 57188693300; 57486987100; 59302175900; 55574223813; 55961876600 leeminku@kaeri.re.kr;dkkim@kaist.ac.kr;ckyu@jbnu.ac.kr; JOURNAL OF ALLOYS AND COMPOUNDS J ALLOY COMPD 0925-8388 1873-4669 1008 SCIE CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING 2024 6.3 10.9 0.69 2025-05-07 3 4 Pyrochlore; Dielectric energy storage; Ceramic capacitor; Microstructure; Breakdown strength ZINC NIOBATE PYROCHLORE; STRENGTH; DENSITY; MICROSTRUCTURE; SUPERCAPACITOR; BI1.5ZNNB1.5O7; SIZE Breakdown strength; Ceramic capacitor; Dielectric energy storage; Microstructure; Pyrochlore Bismuth alloys; Capacitor storage; Ceramic capacitors; Dielectric losses; Dielectric properties of solids; Electric breakdown of solids; Sintering; Zinc alloys; Breakdown property; Breakdown strengths; BZN ceramics; Dielectric energy storage; Dielectrics property; Energy; Energy density; Energy storage properties; Performance; Pyrochlores; Grain refinement English 2024 2024-12-15 10.1016/j.jallcom.2024.176569 바로가기 바로가기 바로가기 바로가기
Article Importance of multimodal resident education curriculum for general surgeons: perspectives of trainers and trainees Purpose Satisfaction should be prioritized to maximize the value of education for trainees. This study was conducted with professors, fellows, and surgical residents in the Department of general surgery (GS) to evaluate the importance of various educational modules to surgical residents.Methods A questionnaire was administered to professors (n = 28), fellows (n = 8), and surgical residents (n = 14), and the responses of the three groups were compared. Four different categories of educational curricula were considered: instructor-led training, clinical education, self-paced learning, and hands-on training.Results The majority of surgeons regarded attending scrubs as the most important educational module in the training of surgical residents. However, while professors identified assisting operators by participating in surgery as the most important, residents assessed the laparoscopic training module with animal models as the most beneficial.Conclusions The best educational training course for surgical residents was hands-on training, which would provide them with several opportunities to operate and perform surgical procedures themselves. Lee, Jeeyeon; Kwon, Hyung Jun; Park, Soo Yeon; Jung, Jin Hyang Kyungpook Natl Univ, Chilgok Hosp, Dept Surg, Hoguk Ro 807, Daegu 41404, South Korea Park, Jun-Bean/AAN-3026-2021 37079213100; 59579184900; 57854200300; 57209310173 jjh01@knu.ac.kr; BMC MEDICAL EDUCATION BMC MED EDUC 1472-6920 24 1 SSCI;SCIE EDUCATION & EDUCATIONAL RESEARCH;EDUCATION, SCIENTIFIC DISCIPLINES 2024 3.2 11.0 0 2025-05-07 0 0 Surgeon; Residency; Education; Multimodal; Curriculum SATISFACTION; TRENDS Curriculum; Education; Multimodal; Residency; Surgeon Attitude of Health Personnel; Clinical Competence; Curriculum; Education, Medical, Graduate; Faculty, Medical; Female; General Surgery; Humans; Internship and Residency; Male; Surgeons; Surveys and Questionnaires; adult; article; clinical education; curriculum; education; female; general surgery; human; learning; male; questionnaire; resident; satisfaction; scrub; student; surgeon; surgery; surgical technique; clinical competence; education; general surgery; health personnel attitude; medical education; medical school; surgeon English 2024 2024-05-10 10.1186/s12909-024-05515-x 바로가기 바로가기 바로가기 바로가기
Review Unveiling Invisible Extracellular Vesicles: Cutting-Edge Technologies for Their in Vivo Visualization Extracellular vesicles (EVs), nanosized lipid bilayer vesicles released by nearly all types of cells, play pivotal roles as intercellular signaling mediators with diverse biological activities. Their adaptability has attracted interest in exploring their role as disease biomarker theranostics. However, the in vivo biodistribution and pharmacokinetic profiles of EVs, particularly following administration into living subjects, remain unclear. Thus, in vivo imaging is vital to enhance our understanding of the homing and retention patterns, blood and tissue half-life, and excretion pathways of exogenous EVs, thereby advancing real-time monitoring within biological systems and their therapeutic applications. This review examines state-of-the-art methods including EV labeling with various agents, including optical imaging, magnetic resonance imaging, and nuclear imaging. The strengths and weaknesses of each technique are comprehensively explored, emphasizing their clinical translation. Despite the potential of EVs as cancer theranostics, achieving a thorough understanding of their in vivo behavior is challenging. This review highlights the urgency of addressing current questions in the biology and therapeutic applications of EVs. It underscores the need for continued research to unravel the complexities surrounding EVs and their potential clinical implications. By identifying these challenges, this review contributes to ongoing efforts to optimize EV imaging techniques for clinical use. Ultimately, bridging the gap between research advancements and clinical applications will facilitate the integration of EV-based theranostics, marking a crucial step toward harnessing the full potential of EVs in medical practice. image Gangadaran, Prakash; Khan, Fatima; Rajendran, Ramya Lakshmi; Onkar, Akanksha; Goenka, Anshika; Ahn, Byeong-Cheol Kyungpook Natl Univ, Sch Med, Dept Biomed Sci, FOUR KNU Convergence Educ Program Biomed Sci Creat, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Nucl Med, Daegu, South Korea; Kyungpook Natl Univ, Cardiovasc Res Inst, Daegu, South Korea; Cleveland Clin, Lerner Res Inst, Dept Canc Biol, Cleveland, OH USA; Univ Calif San Francisco, Dept Lab Med, San Francisco, CA USA; Emory Univ, Winship Canc Inst, Dept Hematol & Med Oncol, Atlanta, GA USA; Kyungpook Natl Univ Hosp, Dept Nucl Med, Daegu, South Korea ; Goenka, Anshika/AAR-4277-2021; Khan, Fatima/GQP-2552-2022; Rajendran, Ramya/AAV-6338-2021; Gangadaran, Prakash/AAV-3102-2021 54393130400; 57205752395; 57195318729; 57218369547; 57218414224; 7202791511 abc2000@knu.ac.kr; WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY WIRES NANOMED NANOBI 1939-5116 1939-0041 16 5 SCIE MEDICINE, RESEARCH & EXPERIMENTAL;NANOSCIENCE & NANOTECHNOLOGY 2024 8.2 11.0 0.45 2025-05-07 4 4 extracellular vesicles; magnetic resonance imaging; nuclear imaging; optical imaging; theranostics MAGNETIC-RESONANCE-SPECTROSCOPY; IRON-OXIDE NANOPARTICLES; CELL-DERIVED EXOSOMES; GENE-EXPRESSION; NEXT-GENERATION; DRUG-DELIVERY; QUANTUM DOTS; STEM-CELLS; BIODISTRIBUTION; CANCER extracellular vesicles; magnetic resonance imaging; nuclear imaging; optical imaging; theranostics Animals; Extracellular Vesicles; Humans; Magnetic Resonance Imaging; Mice; Optical Imaging; Cell signaling; Medical imaging; Medical nanotechnology; Nuclear magnetic resonance; Theranostics; biological marker; Cutting edge technology; Extracellular; Extracellular vesicle; In-vivo; Intercellular signalling; Lipid-bilayer vesicles; Nuclear imaging; Optical imaging; Theranostics; Therapeutic Application; biological activity; electric potential; exosome; fluorescence imaging; human; lipid bilayer; nanobiotechnology; nanomedicine; nonhuman; nuclear magnetic resonance imaging; personalized medicine; pharmacokinetics; review; therapy; animal; fluorescence imaging; metabolism; mouse; nuclear magnetic resonance imaging; Magnetic resonance imaging English 2024 2024-09 10.1002/wnan.2009 바로가기 바로가기 바로가기 바로가기
Article A Novel Training Design Algorithm for Kronecker-Inseparable MIMO Systems With General Power Constraints In this paper, we study the training design for multiple-input multiple-output (MIMO) systems. Unlike the majority of existing works, we consider the most practical and general, yet challenging, scenario where the channel and noise covariance matrices are Kronecker-inseparable and general power constraints are imposed on the training signal. To effectively solve this challenging problem, we devise a novel and efficient iterative algorithm, in which the channel estimator and training signal are jointly optimized in an alternating manner by minimizing mean squared error (MSE) of the channel estimation. Simulation results demonstrate that the proposed scheme performs markedly better and more effective than the existing schemes. Kang, Jae-Mo Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea 56024930400 jmkang@knu.ac.kr; IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY IEEE T VEH TECHNOL 0018-9545 1939-9359 73 9 SCIE ENGINEERING, ELECTRICAL & ELECTRONIC;TELECOMMUNICATIONS;TRANSPORTATION SCIENCE & TECHNOLOGY 2024 7.1 11.1 0 2025-04-16 0 0 Training; MIMO communication; Channel estimation; Transmitting antennas; Covariance matrices; Noise; Receiving antennas; Kronecker-inseparable covariance matrix; MIMO; training design SIGNAL-DESIGN; CHANNELS; OPTIMIZATION; SEQUENCE Channel estimation; Kronecker-inseparable covariance matrix; MIMO; training design Channel estimation; Iterative methods; Mean square error; MIMO systems; Receiving antennas; Signal receivers; Covariance matrices; Kronecke-inseparable covariance matrix; Kronecker; Multiple inputs; Multiple outputs; Multiple-input multiple-output; Multiple-input multiple-output communications; Noise; Training design; Transmitting antenna; Covariance matrix English 2024 2024-09 10.1109/tvt.2024.3394611 바로가기 바로가기 바로가기 바로가기
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WoS Category Web of Science의 주제 분류 카테고리입니다. 저널과 논문이 속한 학문 분야를 나타냅니다.
JCR Year 해당 저널의 JCR(Journal Citation Reports) 지표가 산출된 연도입니다.
IF (Impact Factor) 저널 영향력 지수. 최근 2년간 발표된 논문이 해당 연도에 평균적으로 인용된 횟수를 나타냅니다. 저널의 학술적 영향력을 나타내는 대표적인 지표입니다.
JCR (%) 해당 카테고리에서 저널이 위치하는 상위 백분율입니다. 값이 낮을수록 우수한 저널임을 의미합니다 (예: 5%는 상위 5%를 의미).
FWCI Field-Weighted Citation Impact. 분야별 가중 인용 영향력 지수입니다. 논문이 받은 인용을 동일 분야, 동일 연도, 동일 문헌 유형의 평균과 비교한 값입니다. 1.0이 평균이며, 1.0보다 높으면 평균 이상의 인용을 받았음을 의미합니다.
FWCI UpdateDate FWCI 값이 마지막으로 업데이트된 날짜입니다. FWCI는 인용이 누적됨에 따라 주기적으로 업데이트됩니다.
WOS Citation Web of Science에서 집계된 해당 논문의 총 인용 횟수입니다.
SCOPUS Citation SCOPUS에서 집계된 해당 논문의 총 인용 횟수입니다.
Keywords (WoS) 저자가 논문에서 직접 지정한 키워드입니다. Web of Science에 등록된 저자 키워드 목록입니다.
KeywordsPlus (WoS) Web of Science에서 자동으로 추출한 추가 키워드입니다. 논문의 참고문헌 제목에서 자주 등장하는 단어들로 생성됩니다.
Keywords (SCOPUS) 저자가 논문에서 직접 지정한 키워드입니다. SCOPUS에 등록된 저자 키워드 목록입니다.
KeywordsPlus (SCOPUS) SCOPUS에서 자동으로 추출하거나 추가한 색인 키워드입니다.
Language 논문이 작성된 언어입니다. 대부분 English이며, 그 외 다양한 언어로 작성된 논문이 포함될 수 있습니다.
Publication Year 논문이 출판된 연도입니다.
Publication Date 논문의 정확한 출판 날짜입니다 (년-월-일 형식).
DOI Digital Object Identifier. 디지털 객체 식별자로, 논문을 고유하게 식별하는 영구적인 식별번호입니다. 이를 통해 논문의 온라인 위치를 찾을 수 있습니다.